We report on study of the vortex liquid in Pb-doped Bi-2223 single crystal using the in-plane resistivity measurements as a function of temperature and magnetic field up to 6T applied perpendicular to CuO planes. Below Tc at the upper part of superconducting transition we found Arrhenius-like resistivity behavior. With further temperature decrease close to resistivity onset resistivity shows power law dependence on temperature signaling approaching vortex-glass transition. The critical exponents nu(z-1)=4.6 plus-minus 0.5 are found to be field independent within experimental errors. We also present magnetic phase diagram defining region of nonzero critical current for Pb-doped Bi-2223 single crystal.
@article{arxiv.0909.0665,
title = {Vortex glass scaling in Pb-doped Bi2223 single crystal},
author = {Yu. Eltsev and S. Lee and K. Nakao and S. Tajima},
journal= {arXiv preprint arXiv:0909.0665},
year = {2015}
}